HP 70908A, Service Manual

Page: 273 / 335

Rear P anel
CA UTION
This module contains components that can be damaged or destroyed by
electrostatic discharge . It should be serviced at a static-safe workstation.
(Refer to \Preparing a Static-Safe W ork Station " in Chapter 4.)
T o Remove the Rear P anel
1. Remove the module cover . (Refer to the \Module Cover " procedure .)
2. Remove the three screws (1) holding the A10 power supply/driver in place and fold it down.
3. Remove the one screw (2) that holds the rear-panel to the module center casting.
4. Remove the three screws (3) that hold the rear-panel to the module base .
5. Disconnect W20 (4) and W21 (5) from the rear panel. Do not distort or damage the cables .
6. Disconnect W22J2 (6) from A10J101.
7. Disconnect W22J1 (7) from A12J1.
8. Remove the hex-nut and washers from W11 (8) and W10 (9), and remove the rear panel (10).
T o Replace the Rear P anel
1. Reinsert W11 (8) and W10 (9) in the rear panel (10), replacing the hex-nuts and washers .
T orque the connectors to 6 inch-pounds .
2. Reconnect W22J1 (7) to A12J1.
3. Reconnect W22J2 (6) to A10J101.
4. P osition the rear-panel against the module , being careful not to damage the rear-panel
ground spring (11).
5. Reconnect W20 (4) and W21 (5) to the rear panel and torque the connectors to 10
inch-pounds . Do not distort or damage the cables .
6. Replace the three screws (3) that hold the rear-panel to the module base . T orque the three
base screws to 20 inch-pounds .
7. Replace the one screw (2) that holds the rear-panel to the module center casting. T orque the
one center casting screw to 6 inch-pounds .
8. F old up the A10 power supply/driver and replace the three screws (1) that hold it in place .
T orque the screws to 20 inch-pounds .
9. Replace the module cover . (Refer to the \Module Cover " procedure .)
9-6 Replacing Major Assemblies